Kerosene-burner



C. A. HILL.-

KEROSENE' BURNER.

APPL1C-ATION FILED on. n. 1919.

Patented May 3, 192 1.

2- spans-suit? 1.

I ATTORNEYJA WITNESS:

CLARENCE AQHI LL, oF'ooiiUMB'Us, OHIQ'ASSIVGNOR To THE oHAMPIoit-KnRos-ENE- V BURNER COMPANY, or KENTOH, 01110.21 oonroimmronor omo.

' KEROSENE=BURNER T 0 all whom it may concern: 7

Be it known that I, CLARENCE A. HILL, a citizen of the United States,.resid1ng at Columbus, in the county of Franklin and "State of Ohio, have invented' certa'in new and useful Improvements in Kerosene- Burners; and I hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanyingdrawings, which form part of this specification This inventionis an improvement in kerosene burners, or kerosene gas generating and burning apparatus; and in particular is an improvement uponthe kerosene gas g'enerf ating and burning apparatus :shown in i patent to A. A. Rusteberg, dated November 4, 1919, No. 1,320,928, and to LrF. Bertrau, 1 dated November 4, 1919, No. 1,320,973, the objects of thepresent invention are to. produce a kerosenegburner 'WlllClI will have even greater efiiciency in operation than the burners above-referred to, and by which a more complete generation of gas from the kerosene will be realized, a greater volume of gas produced, and more intense heat ob tained. r

The invention consists more particularly in the novel construction of the gas generatf ing portions of the apparatus, and thegaccompanying drawings illustrate a practical embodiment of the invention, which will be hereinafter described; and the essential novel features of the" invention are summarized in the claims,

In said drawings:

Figure 1 is aside elevationof the gener- 1. ating apparatusas applied to a rivet heating valve 1' is opened, as shown in 'the Bertrau -application'afore'said.

furnace.

Fig. 2 is an enlarged front viewof the' apparatus;

Fig. 3 is an enlarged longitudinal vertical" sectional view of the generating portion of the apparatus on the line 8-3 of Fig. 4.

Fig. 4 is a horizontal sectional view of the apparatus on the line 4.'4L, Fig;'8.

' The apparatus as shown includes aback pressure gas chamber 0, which may beformed'within a suitably shaped casting 2. I

specification of LettersPatent, PatntdkMay 3 lication filed October 11, 1919.] Serial .No. 330,061. i

and has an opening in its top-near its outer' i end,;,wh ch lspconllectedi-with the" mixing tube as herelnafterexplained.

The back pressure chamber C is prefer ably cylindric in cross section and closed at the top and bottom excepuwhere it'opens into the extension 2 2 V Surrounding thisback pressure chamber 0 exterior to the casting is a coiled generating pipe or retort 1 the inner diameter of properly space the coils from'the outer wall i of the back pressure gas chamber and keep the, :coils properly positioned relative thereto. The generating coil maybe supported at one side of the casting on the extension 2 and at the other side b'y,a bracket or clip 2 attached'to'thecasting as shown In. the walls of" the back" pressure gas :chamber C are formed a series of perforations 2?, which are preferably drilled close bent downwardly to'form, or is connected with, a vertlcally dlsposed reservoir section 1 below the generating coils, and the lower end of this reservoir section -1 is'connected to the outlet'of-a' valve 1 the inlet of which is connected by a'pip'e'l f to thekerosene or fuel oil supply, 'not-sh ')w I'1,but preferably a tank from which the kerosene ls-forced by together in a spiral'line opposite the center i The extremity of the lowermost coil is air pressureintothe reservoir 1? when the i The upper extremity ofthe generating pipe 1 is connected to or formed with a reducingelbow 1 to the outer upper end of whichis connected a jet-head or tip 1 which as shown preferablyconsists'of'a short tubular section 6 closed at its upper end and, havr I escapes, This tip 1 can be made of brass or other suitable metal veryrcheaply and simply, and its lower end is. externally threaded'to readily screwinto the elbow P.

Owing to the peculiar form of this jet-head the jet aperture 1 therein will not become clogged with carbon for if any carbon should be carried over by gases generatedin the generating pipe 1, such carbon would be directed into the chamber 1 in the jet-head above the aperture 1, and be trappedin such chamber and not choke the jet aperture; and 7 this obviates the necessity for frequent clean-'- ing of the jet aperture.

The gas issuing horizontally from the.

aperture 1, in the jet head ,is directed into the open end of a'mixing tube 4; and a1r enters such tube adjacent the "jet head and mixes with the gas in traversing the mixing tube. This mixing tube is preferably made in two sections l4 united oy a T 4*, and this T is connected by a short vertically disposed tube l with the opening in the ex- I The tube 49 may support the mixing tube? tension 2* of the back pressure chamber.

upon the casting 2. Preferably the parts are so arranged that the axes of the tube 4 and the back pressure chamber 0 are vertical, and the mixing tube 44P is horizontal'. V V

From the section 48 of the mixing tube the gaseous mixtures are conducted to the point ofutilization. The gases may be conducted from the mixing tube 4P by a pipe 4 to a rivet heating furnace 5, as illustrated in the ,Bertrau application, aforesaid; but obviously may be directed to any desired point of, or means for, utilization thereof. 7

Sufficient gas will enter the back pressure 'chamber C through pipe 4 and escape through the apertures 2 and being ignited I on the outside of the back pressure chamber 1 will heat the generating pipe 1 and maingenerating pipe 1 to initially heat it and start the generation of gas; or other well known means may be used to initially heat the generating pipe 1,

The proportions of the various parts of the oil and gas passages are substantially similar to those described in the Bertrau application aforesaid; except that the generating pipe may be one-fourth inch in internal diameter, instead of three-eighths of an inch in internal diameter; although it may be made of the latter diameter, if desired, or

any larger diameter as the various uses of the: burner may demand an increased amount of fuel gas.

In this construction the generating pipe or retort is made in the form of a coil, in-

in the Bertrau or Rusteberg burners the generating pipe is only about 28 inches in length. y, my construction I obtain a better and more complete generation of gas, that is, the kerosene is practically converted into a gas instead of merely or principally vaporized, and thus I obtain a greater volume of fuel gases from a given quantity of kerosene; and this gas will more readily mix with a larger quantity of air and this superior mixture produces more intense heat than a mixture of vaporized oil and air.

The gases also flow more evenly through such spiral generating pipe than through a horizontal U-shaped retort, as in a U- shaped retort the vapors rise to the surface of the oil in the pipe and then flow with great rapidity therefrom without becoming thoroughly gasified. My generator. can also be started more quickly than Bertraus or Rustebergs for the reason'that when: applying a hand torch to their generators the flame of thetorch reaches onlyone layer of pipe; while in my apparatus the flame of the torch strikes a number of coils of the generating pipe simultaneously thereby heating'five times-as much surface invthe same length of time. 7

Having described my invention what I claim is: t

1. In a gas generating apparatus of the character specified, a back pressurefchamber having a cylindric portion provided with a spiral series of perforations in its walls and having a lateral extension below the cylindric portion; a spiral generating pipe surrounding said chamber; a mixing tubeya tube conecting the side of the mixing tube with the lateral extension; means for supplying kerosene to the inlet end of said generatingpipe; a jet-head connected with the outlet endof said generating pipe and discharging into the mixing tube.

2. In a gas generating apparatusof the character specified, a casting havinga cylindric portionwhose interior-forms a back series of perforations in its walls, and ribs on its exterior, and having a laterally pro-j jecting portion below the cylindric portion; a spiral generating pipe surrounding the cylindric portion of said casting and spaced therefrom by said ribs; anairand gasmixing tube; a connection between said tube with said laterally projecting portion; valved means for supplying kerosene to the inlet end ofsaid generating pipe, and a jetmg in its side discharging into the mixing tube. a

- 3. In a kerosene gas generating and burning: apparatus, a cylindric back pressure gas chamber having a series'iof jet apertures, in

its sides and a lateral extension at its bottom communicating with .the' gas-chamber; a spiral generating pipesurrounding the said chamber;-an airand gas mixing tube above the casting chamber; aconnection between thexmixing tube andthe lateral extension'of the back pressure chamber; valved means for supplying kerosene to said generating pipe; and a vertically disposed et-head connectediwith theidischarge end of the generating pipe havinga closedupper end and an aperture in its side below-such upper-end adapted to direct gas generated in'the' generatinglpipe into the mixing tube.

4. In a kerosene gas generating and burning apparatus, a cylindric back pressure gas chamber having a' spiral series of closelyadjacent jet apertures in its sides and a lateral extension at'its bottom communicating with the gas chamber at its inner end; a spiral generating pipe surrounding the said chamber, said generating pipe having a vertically disposed reservoir section at its receiving end; an air and gas mixing tube above the casting chamber; a tube connecting the mixing tube and the lateral extension of the back pressurechamber; means for supplying kerosene to said reservoir section; and a jet-head connected with the discharge end of the generating pipe adapted to direct gas generating in the generating pipe into the mixing tube. r

5. In a kerosene gas generating and burning apparatus, a casting having a cylindric portion whose interior forms an internal back pressure gas chamber with a spiral series of jet apertures in its sides, and a lateral extension communicating with said chamber; a spiral generating pipe surrounding the cylindrical portion of said casting; an air and gas mixing tube above the casting; a short tube connecting the mixing tube with the lateral extension; a reservoir section at the receiving end of "said generating pipe; means for supplying kerosene to said reservoir section; a jet-head connected with the discharge end or" the generating plpe adapted to direct gas generated in the generating pipe into the mixing tube; and means for directing gases from the mixing tube to the point of utilization.

6. In a kerosene gas generating and burning apparatus, a casting having a cylindric portion whose interior forms an internal back pressure gas chamber with a spiral series of jet apertures in its sides, and a lateral extension below saidchamber and communicating therewith; a spiral generating vs @pipe 1 surroundingpthe? cylindrical portionv of i said casting; an ;airi and gas mixing tube above theicasting; ashorttube extending at right, angles to the .mixing tube. andcom- "municating therewith and with the lateral? :extension of theback-pressure"chamber; a

iverticallydisposed reservoir section at the receivlng-endof sa1d generating. pipe; means :for supplying: kerosene .to sa1d reservoir sec- -'tion; fa; jet-head connected-with the dis- 1 charge: end of the 1 generating pipe adapted .ito direct gas' generatedin the' generating I pipe: into the mixing tube; and mea ns {for .directing gases from the: mixiligtube to the :point of utilization. f

" 7. In akerosene gasgeneratingand1burning apparatus, a casting having a cylindric portion .whose interiorwtorms an internal- "back pressure gas. chamber with a spiral :Series of. closely adjacent jet apertures in.

its sides, and atlateral' extension below said chamber and communicating therewith; a spiral generating pipe surrounding the cylindrical portion of said casting and spaced therefrom; an air and gas mixing tube above the casting; a short tube extending at right angles to the mixing tube and communicating therewith and connecting the mixing tube with thelateral extension of the back pressure chamber avertically disposed reservoir section at the receiving end of said generating pipe; valved means for supplying kerosene to said reservoir section; a vertically disposed jet-head connected with the discharge end of the generating pipe and having a closed upper end and an aperture in its side below its closed end adapted to direct gas generated in the generating pipe into the mixing tube; and means for direct- V ing into the mixing tube; and a connection I between the mixing tube and said chamber.

9. In a gasgenerating apparatus. of the character'specified, a back pressure chamber having a cylindric portion provided with a 1 spiral series of perforations in its walls and having a lateral extension below the cylindric portion; a spiral generating pipe surrounding said chamber; and an exterior hood substantially inclosing the chamber and generating coil; with a mixing tube; a tube connecting theside of the mixing tube with the lateral extension;means for supplying kerosene to the inlet end of said generating pipe; a jet-head connected with the outlet 'end of said generating pipe an discharging intothe mixing tube. r

10. In a gas generating apparatus of the character specified, a castinghavinga cylindric portion whose interior forms a back pressure chamber provided with a spiral series of perforations in its walls, and ribs jecting portion below the cylindric por spaced therefrom bysaid ribs; and an exterior hood I substantially inclosing the chamber and generating coil; -with an air and gasmix'ing tube; a connection between said tube with said laterally projecting portion; valved means forsupplying kerosene to the inlet end of said generating pipe, and a jet-head connected with the outlet end of said generating pipe and having av lateral opening in its discharging into the mixing tube. v a

In testimony that I claim the foregoing ing tube. v .7 n p 11. In a gas generating apparatus ofthe character specified, a casting having a cylindric portionwhose interior forms aback? pressure chamber, provided with a seriesv of perforations in its walls,' and a laterally side discharging into the mix-- projecting portion below the cylindric portion; a spiral generating pipe. surrounding the cylindric portion of said casting and w .spacedtherefrom; an air and gas mixing tube; a lateral COI'IIIGCtlOIlbBtWGBIl saidtube and said laterally projecting portion, beside the cylindric portion valved means for superating pipe; and a jet-head connected with the outlet endof said generating pipe and as my own, I affix my signature. 7

CLARENCE A. HILL plying kerosene to the inlet end of said gen- 

